Note 8 - Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2022

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

		July 31, 2022										January 31, 2022
	Weighted	Gross								Net		Gross								Net
	Average Life at	Carrying		Accumulated						Carrying		Carrying		Accumulated						Carrying
	7/31/2022	Amount		Amortization			Impairment			Amount		Amount		Amortization			Impairment			Amount
		(in thousands)										(in thousands)
Goodwill		$	7,060	$	—		$	(7,060	)	$	—	$	7,060	$	—		$	(7,060	)	$	—
Proprietary rights	5.6		8,237		(4,382	)		—			3,855		8,237		(4,150	)		—			4,087
Customer relationships	0.3		5,024		(4,845	)		—			179		5,024		(4,797	)		—			227
Patents	2.4		2,540		(1,902	)		—			638		2,540		(1,778	)		—			762
Trade name	3.8		894		(91	)		(760	)		43		894		(85	)		(760	)		49
Developed technology	3.4		1,430		(941	)		—			489		1,430		(870	)		—			560
Other	1.8		693		(428	)		—			265		694		(361	)		—			333
Amortizable intangible assets		$	18,818	$	(12,589	)	$	(760	)	$	5,469	$	18,819	$	(12,041	)	$	(760	)	$	6,018

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

For fiscal years ending January 31,		(in thousands)
2023	$	592
2024		1,043
2025		818
2026		721
2027		420
Thereafter		1,875
Total	$	5,469